Update: Some offers mentioned below are no longer available. View the current offers here.For more TPG news and deals delivered each morning to your inbox, sign up for our daily newsletter here: https://thepointsguy.com/mailing-list//It's been a great few days for Delta flash sales. Today, we’re seeing round-trip deals around the country starting at just $97 round-trip.Keep in mind that many of the tickets are in Delta’s basic economy fare class. This means that there are restrictions or fees on seat assignment, upgrades, changes and — for some destinations — checked baggage. However, there are ways to defeat portions of basic economy by using a cobranded credit card. Note that some Basic Economy restrictions are waived for elites.To see the full list of the deals being advertised, head to Delta’s deal page. As always, if you don’t see your city listed, still check as it’s possible it’s not listed in the sale, but you may still be able to snag a good deal. But don’t wait, the deals are only through September 25!Airline: DeltaRoutes: Major routes served by Delta, see full list hereCost: $97+ round-trip in basic economyDates: October – February 2020Pay With: The Platinum Card® from American Express (5x on airfare booked directly with the airline), Citi Prestige® Card (5x on airfare), Citi Premier® Card, Chase Sapphire Reserve (3x on airfare), American Express® Gold Card (3x on airfare when booked directly with the airline) or Chase Sapphire Preferred Card (2x on travel)Here are a few examples of what you can book:Atlanta (ATL) to Nashville (BNA) for $97 round-trip in basic economy:Los Angeles (LAX) to San Diego (SAN) for $99 round-trip in basic economy:Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Las Vegas (LAS) to Long Beach (LGB) for $99 round-trip in basic economy:Los Angeles (LAX) to San Francisco (SFO) for $107 round-trip in basic economy:Austin (AUS) to Cincinnati (CVG) for $117 round-trip in basic economy:Seattle (SEA) to San Jose (SJC) for $127 round-trip in Main Cabin:Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as The Platinum Card® from American Express (5x on flights booked directly with airlines or American Express Travel), Chase Sapphire Reserve, American Express® Gold Card, Citi Premier® Card, Citi Prestige Card (5x on airfare) or the Chase Sapphire Preferred Card (2x on all travel purchases). Check out this post for more on maximizing airfare purchases.